Home / 21,687.67-32,531.46-6,105.25

Finding the Fourth Proportional to 21,687.67, 32,531.46 and 6,105.25

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Solution

The fourth proportional to 21,687.67, 32,531.46 and 6,105.25 is: 9,157.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687.67 : 32,531.46 = 6,105.25 : x
  2. Step 2: Convert to fraction form
    21,687.67/32,531.46 = 6,105.25/x
  3. Step 3: Cross multiply
    21,687.67x = 32,531.46 × 6,105.25
  4. Step 4: Simplify right side
    21,687.67x = 198,612,696.17
  5. Step 5: Solve for x
    x = 198,612,696.17/21,687.67
  6. Step 6: Final answer
    x = 9,157.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.